2 years ago

The number of children in each family on a particular city block is shown in the dot plot:

Mathematics

1 answer:

Shalnov [3]2 years ago

8 0

The one i circled!!!!!!!

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What is the value of the expression below when y 8 and z = 8? 9y + 3z

aleksley [76]

Answer:

Step-by-step explanation:

8y+3z

9(8)+3(8)

72+24

6 0

2 years ago

If the ratio of red hair bands to green hair bands is 5 to 9 with a total of 70, how many are green

Eduardwww [97]

$5x-\ red\\9x-\ green\\\\5x+9x=70\\
14x=70\ \ \ | divide\ by\ 14\\\\
x=5\\\\
9x=9*5=45\\\\
There\ are\ 45\ green.$

5 0

3 years ago

Please help with this math problem for trig. A 6 m ladder is leaning against a wall. The base of the ladder is 1.5 m from the wa

VladimirAG [237]

Answer:

a = 5.81 m

Step-by-step explanation:

We can use the Pythagorean theorem

a^2 + b^2 = c^2

where b= 1.5 and c= 6

a^2 +1.5^2 = 6^2

a^2 +2.25 = 36

Subtract 2.25 from each side

a^2 +2.25-2.25 = 36-2.25

a^2 = 33.75

Take the square root of each side

sqrt(a^2) = sqrt(33.75)

a = 5.809475019

We only take the positive root because length must be positive

4 0

3 years ago

After 15% discount an item cost $22.27 what was the original price?

musickatia [10]

Orig - .15 * orig = 22.27
.85 * orig = 22.27
Original price = 26.20

6 0

3 years ago

Read 2 more answers

Can someone explain how to do this, please?

BartSMP [9]

Answer:

$\sqrt{ {28x}^{2} - 6x }$

Step-by-step explanation:

You would substitute "2x" for every "x" in the function in the same way you would substitute any other number.

So if f(x)=Sqrt[7x²-3x], then: f(2x)=Sqrt[7(2x)²-3(2x)]

=Sqrt[7(4x²)-3(2x)]

=Sqrt[28x²-6x]

6 0

2 years ago